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Re: tapeworm infection ? Views: 2,124
Published: 11 years ago
This is a reply to # 1,554,519

Re: tapeworm infection ?

In that same thread--Newport's notes:

HYMENOLEPIS DIMINUTA | Dwarf worm, found in birds & rodents, 1 inch long, can stay with host a lifetime. *

NOTE: Hymenolepis diminuta adults are found in the intestine or bile ducts
- Thrive on Lead
- Live off of bile

Alternative names are:
- Dwarf Tapeworm infection
- Rat tapeworm

Hymenolepis worms live in warm climates and are common in the southern USA. The eggs of these worms are ingested by insects, and mature into a life form referred to as a "cysticercoid" in the insect. In H. nana, the insect is always a beetle. Humans and other animals become infected when they intentionally or unintentionally eat material contaminated by insects. In an infected person, it is possible for the worm's entire life-cycle to be completed in the bowel, so infection can persist for years. Hymenolepis nana infections are much more common than Hymenolepis diminuta infections in humans because, in addition to being spread by insects, the disease can be spread directly from person to person by eggs in feces. When this happens, H. nana oncosphere larvae encyst in the intestinal wall and develop into cysticercoids and then adults. These infections were previously common in the southeastern USA, and have been described in crowded environments and individuals confined to institutions. However, the disease occurs throughout the world. H. nana infections can grow worse over time because, unlike in most tapeworms, H. nana eggs can hatch and develop without ever leaving the definitive host.

A study in Connecticut found that one third of rats sold in pet stores were infected with H. nana and concluded that these and other rodents sold in pet stores pose a potential threat to public health.


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